out of spec lowers that create wobble between the upper and lower absolutely contribute to accuracy issues. lowers being in spec matter as much as the upper
A lower being out of spec to such a degree is noticable and would be worthy of a RMA. At the end of the day if a lower is in spec the only thing that matters is rollmark, FCG pocket, and potential ambi controls.
A PSA, Aero, Poverty Pony, etc lower that is in spec is going to perform no different than a BCM, PWS, LaRue, Centurion, LMT lower. The former are more likely to have lowers out of spec, but from personal experience when they are actually bad they will happily replace them. BCM wanted a fricking laundry list for a RMA I did a couple years back on a lower I received where grip screw threading wasn't even threaded and the entire grip just came off the moment if was plopped on a rifle.
11 months ago
Anonymous
>A lower being out of spec to such a degree is noticable and would be worthy of a RMA.
You really you'd notice a trigger or hammer hole being 20thou out of nominal unless you were trying to install a cassette trigger?
11 months ago
Anonymous
You really think*
11 months ago
Anonymous
If you’re going to be this obnoxious about quality I need you to do 3 things before I take you seriously:
1. Post wrists
2. Post 5 shot 100 yard group
3. Post proof of deed for a house and investment portfolio
Otherwise shut the frick up.
11 months ago
Anonymous
Lmao look at this guy
11 months ago
Anonymous
I accept your concession.
11 months ago
Anonymous
>wrists
What the frick? >5 shot 100 yard gp
With what ammo and stance motherfricker. >deed and stock portfolio
b***h I'm not even that anon but you can go frick yourself.
11 months ago
Anonymous
>You really think you'd notice
Then if you don't notice and you're not installing a cassette trigger, what's the fricking issue?
11 months ago
Anonymous
>Then if you don't notice and you're not installing a cassette trigger, what's the fricking issue?
How about the part where you just lost 20 thou of sear overlap, dumb frick. You're one strong bump away from an ND.
11 months ago
Anonymous
Are you moronic? It wouldn't make any difference to the overlap of the sear. Look at a diagram of a milspec trigger group. If the hammer or trigger pin holes were off, the trigger return spring would just push the trigger and sear up a little further until it contacted the hammer as normal.
11 months ago
Anonymous
You know the disconnector has a sear, right?
Not to mention, up and down isn't the only direction a hole might be off. Push that trigger hole rearwards and you can see how that hammer sear contact starts to become precarious.
11 months ago
Anonymous
The disconnector has plenty of engagement for that not to be an issue.
It doesn't matter what direction it's in, the hammer and trigger sear will always be forced into full engagement, unless it's literally 1/8" off or something.
11 months ago
Anonymous
their enhanced upper that takes the proprietary handguard is literally a straight upgrade to milspec. insanely rigid, cheap, almost the same performance as a true monolithic except a fraction of the price.
11 months ago
Anonymous
didn't mean to reply pls ignore
11 months ago
Anonymous
Is this about the polylithic upper?
The disconnector has plenty of engagement for that not to be an issue.
It doesn't matter what direction it's in, the hammer and trigger sear will always be forced into full engagement, unless it's literally 1/8" off or something.
>Plenty >always >unless [random number you pulled out of your ass]
It's a multipart tolerance stack, the disco has about 30-50thou engagement. Say you take away 20 thou because your positional tolerance is fricked, and then take the tolerance from the edge of the sear surface to the pivot hole on the disco, then take the tolerance from the hammer sear surface's edge to its own pivot hole, run it through CETol or something, or just consider it a purely horizontal problem, and add up the numbers by hand, it can get darn close to slipping. And that's not even considering wear.
11 months ago
Anonymous
>[random number you pulled out of your ass]
Yes, I know. I wasn't making a point about a specific value, I was making the point that it would have to be very excessive for it to significantly impact the engagement of the trigger sear and hammer.
If it's out enough that your disconnector isn't engaging, you're going to fricking notice that.
>disco has about >darn close
So why don't you run it through CETol or something, and show how far they'd need to be out of spec for the trigger sear not to engage properly?
11 months ago
Anonymous
>So why don't you run it through CETol or something, and show how far they'd need to be out of spec for the trigger sear not to engage properly?
Sorry, but I'm not willing to spend a couple hours modeling and constraining stuff with the proper tolerances just to prove to you that a mechanism with a three part tolerance stack that holds a sear contact of 30-50 thou wouldn't like a hole being 20 thou out of tolerance. Honestly, that should be fairly obvious. Here's the tolerances of the sear edges to the respective pivot holes on the disco and the hammer, one is +/-.003, the other is +0/-.004 , by this alone you can lose .007" of sear overlap from nominal. I don't recall the diameter tolerances of the holes, but it's probably something like +/-.001, so with both holes at minimum material condition, you lose an additional .002. The "horizontal" hole to hole distance is probably +/-.002, or a positional dia tolerance of .004 if the newer drawings use GD&T. It can add up pretty quickly, so yeah..20 thou is a lot, but to a human eye, it's hardly perceptible depending on what you're doing. Installing a cassette trigger would make it obvious, but installing a normal 2 part trigger may not.
11 months ago
Anonymous
>Then if you don't notice and you're not installing a cassette trigger, what's the fricking issue?
How about the part where you just lost 20 thou of sear overlap, dumb frick. You're one strong bump away from an ND.
You know the disconnector has a sear, right?
Not to mention, up and down isn't the only direction a hole might be off. Push that trigger hole rearwards and you can see how that hammer sear contact starts to become precarious.
https://i.imgur.com/BxveZt3.jpg
Is this about the polylithic upper?
[...] >Plenty >always >unless [random number you pulled out of your ass]
It's a multipart tolerance stack, the disco has about 30-50thou engagement. Say you take away 20 thou because your positional tolerance is fricked, and then take the tolerance from the edge of the sear surface to the pivot hole on the disco, then take the tolerance from the hammer sear surface's edge to its own pivot hole, run it through CETol or something, or just consider it a purely horizontal problem, and add up the numbers by hand, it can get darn close to slipping. And that's not even considering wear.
https://i.imgur.com/Vg9N6W5.jpg
>So why don't you run it through CETol or something, and show how far they'd need to be out of spec for the trigger sear not to engage properly?
Sorry, but I'm not willing to spend a couple hours modeling and constraining stuff with the proper tolerances just to prove to you that a mechanism with a three part tolerance stack that holds a sear contact of 30-50 thou wouldn't like a hole being 20 thou out of tolerance. Honestly, that should be fairly obvious. Here's the tolerances of the sear edges to the respective pivot holes on the disco and the hammer, one is +/-.003, the other is +0/-.004 , by this alone you can lose .007" of sear overlap from nominal. I don't recall the diameter tolerances of the holes, but it's probably something like +/-.001, so with both holes at minimum material condition, you lose an additional .002. The "horizontal" hole to hole distance is probably +/-.002, or a positional dia tolerance of .004 if the newer drawings use GD&T. It can add up pretty quickly, so yeah..20 thou is a lot, but to a human eye, it's hardly perceptible depending on what you're doing. Installing a cassette trigger would make it obvious, but installing a normal 2 part trigger may not.
Black person what are you even talking about, .020 is a fricking mile- if the holes are off that much the part is scrapped and your point is moot. You talk like a homosexual engineer
11 months ago
Anonymous
>.020 is a fricking mile- if the holes are off that much the part is scrapped
Here's the thing though, some Aero lowers came out with holes that far out of tolerance. Hence this entire fricking discussion. Aero QC is trash.
11 months ago
Anonymous
kek thats completely moronic on their part, that cant be blamed on manufacturing variance. Not surprised though-they are barely above PSA in terms of the QC lottery. On my M4E1 upper you have to really push on it to get it to snap shut.
11 months ago
Anonymous
*the dust cover
11 months ago
Anonymous
No they didn't.
11 months ago
Anonymous
is there any actual evidence of Aero drilling a pin hole .020 off the mark? Even better is there any evidence that it happened more than once?
I doubt there is any evidence
11 months ago
Anonymous
I don't even see how it could be possible, .020" is a mile. If the part was set up that far off in the machine every single feature would be fricked not just a pin hole.
Machining AR lowers is a fricking trivial task for any competent CNC shop. The notion that Aero would be incapable of doing it to a decent standard despite literally being an aerospace shop originally is hard to believe.
11 months ago
Anonymous
>.020" is a mile
Thats what I said- even running with a broken spot drill it would walk maybe .005 off center, and considering the diameter tolerance is +.0015/-0 I'd doubt they use normal HSS drills anyway, probably Carbide drills. If the whole part was .020 off even the most moronic operator would be able to see it by eye. I could only see it happening with a really bad misload, but I have seen their fixturing and that doesnt seem likely to happen. Aero QC is certainly shit but this claim is dubious at best
11 months ago
Anonymous
is wobbling that bad? I have a cmmg AR that wobbles a little it's like 1.5 moa with m193. I had to build the upper since my state requires a heavy barrel but all parts are cmmg.
11 months ago
Anonymous
no. Wobbling doesn't matter at all and he is completely full of shit.
11 months ago
Anonymous
What barrel did you use fellow crabgay
11 months ago
Anonymous
cmmg bull barrel .937gas block. it weighs a tonne.
11 months ago
Anonymous
I just built an AR for a buddy using a ballistic advantage barrel. it's pretty good about 1 moa maby 1.5. I'm thinking of holding off for a nice crime lined chf when I nice States but it's super tempting to buy a ba barrel.
11 months ago
Anonymous
>I had to build the upper since my state requires a heavy barrel
lolwut
11 months ago
Anonymous
Most companies don't make a heavy barrel upper. if I wanted to use specific parts I need to build from a stripped upper.
there's "noguns" and then there's you. lowers if out of spec enough that there's slop between the upper and lower will effect accuracy.. the same way that slop in a buttstock effects accuracy.
>wobble between the upper and lower absolutely contribute to accuracy issues
moron
11 months ago
Anonymous
Receiver wobble does not affect the mechanical accuracy of the rifle, but does affect the shooter. Wobble hinders precision some cases. Where scopes are used, consistent head position within the eye box is key to landing the shot exactly where it is aimed. For iron sights, the front/rear post alignment is critical. Wobble requires two objects to be stabilized, instead of just one. It is doable, but more difficult.
11 months ago
Anonymous
You just tighten the internal tension screw until the wobble is gone. If it's so out-of-spec that that doesn't fix it then return the lower to the manufacturer.
11 months ago
Anonymous
[...]
Yes, this is good feature Aero included- an internal tensioner. The 'mil-spec' colt I handled wobbled a lot. An ear plug stuffed under the rear takedown pin fixes the problem, but an internal one just works better.
How do i tighten this on my m4e1 lower and upper. I dont do precision shooting but have a bit of wobble i want to reduce
11 months ago
Anonymous
Stuff a cheap foam ear plug just under the upper receiver rear takedown pin ear. If it is especially bad, you may need to buy an accuwedge.
11 months ago
Anonymous
For the m4E1, take the grip off and adjust the tension screw from the underside of the receiver.
>out of spec lowers that create wobble between the upper and lower absolutely contribute to accuracy issues
No they don't. Also that's not an "out of spec" thing, that's any AR. They all wobble. It's a consequence of the gun being held together by two fricking pins you moron.
I can’t stand the big ass “A” on the side of their lowers. just make a lower with the most minimal branding necessary. it just screams gigahomosexual when I see them
The scarlet letter's much smaller on the non E1 lower, still don't like it, but not worse than all the laser engravement everywhere else
out of spec lowers that create wobble between the upper and lower absolutely contribute to accuracy issues. lowers being in spec matter as much as the upper
>muh wobble
There's a set screw in the lower to address any slack, but I doubt you're shooting beyond 100 yards
I bought ballistic.advantage lowers for that reason. Minimal branding and same company...ish. I stick with solgw or centurion lowers nowadays because I'm a massive homosexual who thinks one day I'll convert them to FA.
there's "noguns" and then there's you. lowers if out of spec enough that there's slop between the upper and lower will effect accuracy.. the same way that slop in a buttstock effects accuracy.
They’re inspec
Standard tolerance for cnc machining is +/- 0.005 aka 5 thou
Let’s say your lower is 5 thou under from brand A but still in tolerance
And let’s say brand b makes the upper 5 thou under
How there is 10 thou gap which looks big and where that wobble comes from both are in tolerance
Plus type 3 anodizing adds some thickness that’s unpredictable in places non-repeatable
Type 3 ano thickness is typically one thou per MIL-A-8625, half in, half out because ano creates pores by digging pores and elevating ridges, so you're really only adding 5 tenths to a dimension.
Besides that, I'm with you, wobble between the receivers doesn't affect accuracy.
Type 3 ano thickness is typically one thou per MIL-A-8625, half in, half out because ano creates pores by digging pores and elevating ridges, so you're really only adding 5 tenths to a dimension.
Besides that, I'm with you, wobble between the receivers doesn't affect accuracy.
Spec for Upper lugs is .496 +0/-.003, Rear lower pocket is .500 +.005/-0 Front lower pocket is .500 +.004-0. Dimensions are before plating for some off reason. I don't care to find the mil spec for the anodize but Hard anodize is usually 5 tenths per surface build up so that means the lugs would be .494 at the thinnest, and the pocket would be .~503. That's 9 thousandths clearance -a piece of printer paper on each side of the lug. many people feel any sort of wobble in their poverty lower and start screeching "out of spec when" they don't own any joe blocks/mics to verify what they think. I have an anderson lower thats .504 in the front and any upper I put on it wobbles like hell, both my LMT lowers are right at .500 and are super tight. I obviously prefer the fit of the LMT but both lowers are "in spec".
there's "noguns" and then there's you. lowers if out of spec enough that there's slop between the upper and lower will effect accuracy.. the same way that slop in a buttstock effects accuracy.
who else is just shitting out lowers? the spikes dick lower was hot 10 years ago. poverty pony is hit or miss if everything is square and in spec. never seen a psa. colt's are just collector shit at this point. >better challenge: name a lower you had/have that noone else does
> better challenge: name a lower you had/have that noone else does
Unfortunately many of those no name lowers, and of course uppers, are simply rebranded receivers from the same group of manufacturers like Aero, Windham, Bushmaster, PSA, Anderson, Spike, etc.
>slap Bear Creek Arsenal upper on DD lower >It's a Daniel Defense. >Sell it. >"DD looks like a bunch of illegal mexicans milled this shit freehand with a wood bit and jams like crazy!" >Occasional "Send it back to DD."
The owner went to prison awhile back for bribing naval officers for contracts.
Problem is mine is registered as an assault weapon in the state of California because I stupidly registered it in 2016. So it’s completely worthless to anyone except me.
Interesting story about JD, I also remember there was an 80% guy in Union City (near the Mex border) I forgot his name…
Before the bullet button registration went into effect I got some Spikes Punisher lowers because only a $100 a piece.
If I were buy today I’d get a Sons of Liberty though.
ruger lower. Not sure why I never see anyone with them considering the 556 is a great starting point and you can just upgrade your upper instead of buying a new rifle.
Sharps Bros make damn good products but their lowers are so fricking lame looking. The livewire I got from them holds up on everything. What a shame they don't make more standard looking ones
>rear takedown using a retaining screw >built in trigger guard saves a step >bolt catch doesn’t require a punch
And some other shit that helps assembly. If you aren’t buying it stripped you probably don’t care.
Specifically the M4E1, it is not a mil-spec lower. This is what they did right: > Fixed trigger guard > set screw keeps rear takedown pin spring with receiver- easier to change grip > internal tensioning screw keeps upper and lower from wobbling - this has no bearing on mechanical accuracy it is important for consistent sight alignment > Best feature: Bolt catch pin is a threaded pin.
No roll pins. None at all.
This and a flared magwell. Aero m4e1 lowers are good value for the money if you don't need ambi.
I do have a Colt (my only AR is one of their A4s, few thousand rounds in so far without a problem), but do they sell lowers separately? I'm looking to build an AR is why I ask.
>rear takedown using a retaining screw >built in trigger guard saves a step >bolt catch doesn’t require a punch
And some other shit that helps assembly. If you aren’t buying it stripped you probably don’t care.
Specifically the M4E1, it is not a mil-spec lower. This is what they did right: > Fixed trigger guard > set screw keeps rear takedown pin spring with receiver- easier to change grip > internal tensioning screw keeps upper and lower from wobbling - this has no bearing on mechanical accuracy it is important for consistent sight alignment > Best feature: Bolt catch pin is a threaded pin.
No roll pins. None at all.
You just tighten the internal tension screw until the wobble is gone. If it's so out-of-spec that that doesn't fix it then return the lower to the manufacturer.
Yes, this is good feature Aero included- an internal tensioner. The 'mil-spec' colt I handled wobbled a lot. An ear plug stuffed under the rear takedown pin fixes the problem, but an internal one just works better.
Because the lower doesn't impact performance at all so spending +$300 on the LaRue one is as cringe as having a punisher skull magwell. You're just paying for a logo.
Its funny seeing morons think Aero isn't a good machining facility.
They literally built airplanes out the ass for Boeing BEFORE switching to gun shit. Only thing wrong about Aero is minmax homosexuals opening their slackjawed mouth crying about shit they don't know about.
>They literally built airplanes out the ass for Boeing BEFORE switching to gun shit
Yes, and?
You think they hold themselves to AS9100 and six sigma when making gun shit? Please..
>owning a lower with Tacoma, WA stamped on the side
of all the shitholes in the liberal hellscape that is Washington, Tacoma is by far the most Black person-infested and crime ridden, why would you want a constant reminder of it's existence when you look at your gun?
>Tacoma is by far the most Black person-infested and crime ridden
Nah, that's nowhere near true. It is a Black person and homeless infested shithole, but it is far from the worst that hellscape has to offer.
>Tacoma is nice
I grew up there and recently went back for a bit. What I saw shocked and disgusted me. The fact you think it's "nice" tells me you're the same sort of human shit that ruined the whole state.
t. hilltop poors. I am not a fan of Tacoma anymore due to the homeless surge but It really isn't as bad as you make it seem.
Every city on the entire west coast has mafia elements from mexico, asia, or central america so that is pretty meaningless
>t. hilltop poors
I live in Gig Harbor. You are the poor. >homeless tents set up on the sidewalks and in any open space >iTs NoT THaT bAD
go frick yourself
11 months ago
Anonymous
well I never actually go to tacoma proper. I find it gross too. I mean outside that specific bubble of tacoma + south tacoma + lakewood, fircrest, UP, gig harbor, steilacoom, proctor is nice.
11 months ago
Anonymous
>ok so tacoma isn't that bad if you're not in tacoma at all
11 months ago
Anonymous
when people say tacoma it refers to a lot bigger area than just downtown, hilltop, and south tacoma.
11 months ago
Anonymous
>t-tacoma isn't completely a shithole, U-UP is still kinda ok and Ruston is nice >let me lump in Gig Harbor too even though it's straight up across the whole ass Puget Sound from Tacoma >basically all of Pierce County is actually just Tacoma
no
11 months ago
Anonymous
[...]
no need to be hostile gentlemen. Gig Harbor is across the water but is University Place and Steilacomb aligned far more than the rest of the peninsula
>Tacoma is nice
I grew up there and recently went back for a bit. What I saw shocked and disgusted me. The fact you think it's "nice" tells me you're the same sort of human shit that ruined the whole state.
Because they feel it's a step above Anderson or Palmetto (it's not).
It really is. You're fricking moronic
here come the “it’s not a poorgay lower it’s a quality lower” copers
It's a fricking lower, unless you're buying one made of cottage cheese they all function 99% the same. The difference lies in the trigger and upper
out of spec lowers that create wobble between the upper and lower absolutely contribute to accuracy issues. lowers being in spec matter as much as the upper
A lower being out of spec to such a degree is noticable and would be worthy of a RMA. At the end of the day if a lower is in spec the only thing that matters is rollmark, FCG pocket, and potential ambi controls.
A PSA, Aero, Poverty Pony, etc lower that is in spec is going to perform no different than a BCM, PWS, LaRue, Centurion, LMT lower. The former are more likely to have lowers out of spec, but from personal experience when they are actually bad they will happily replace them. BCM wanted a fricking laundry list for a RMA I did a couple years back on a lower I received where grip screw threading wasn't even threaded and the entire grip just came off the moment if was plopped on a rifle.
>A lower being out of spec to such a degree is noticable and would be worthy of a RMA.
You really you'd notice a trigger or hammer hole being 20thou out of nominal unless you were trying to install a cassette trigger?
You really think*
If you’re going to be this obnoxious about quality I need you to do 3 things before I take you seriously:
1. Post wrists
2. Post 5 shot 100 yard group
3. Post proof of deed for a house and investment portfolio
Otherwise shut the frick up.
Lmao look at this guy
I accept your concession.
>wrists
What the frick?
>5 shot 100 yard gp
With what ammo and stance motherfricker.
>deed and stock portfolio
b***h I'm not even that anon but you can go frick yourself.
>You really think you'd notice
Then if you don't notice and you're not installing a cassette trigger, what's the fricking issue?
>Then if you don't notice and you're not installing a cassette trigger, what's the fricking issue?
How about the part where you just lost 20 thou of sear overlap, dumb frick. You're one strong bump away from an ND.
Are you moronic? It wouldn't make any difference to the overlap of the sear. Look at a diagram of a milspec trigger group. If the hammer or trigger pin holes were off, the trigger return spring would just push the trigger and sear up a little further until it contacted the hammer as normal.
You know the disconnector has a sear, right?
Not to mention, up and down isn't the only direction a hole might be off. Push that trigger hole rearwards and you can see how that hammer sear contact starts to become precarious.
The disconnector has plenty of engagement for that not to be an issue.
It doesn't matter what direction it's in, the hammer and trigger sear will always be forced into full engagement, unless it's literally 1/8" off or something.
their enhanced upper that takes the proprietary handguard is literally a straight upgrade to milspec. insanely rigid, cheap, almost the same performance as a true monolithic except a fraction of the price.
didn't mean to reply pls ignore
Is this about the polylithic upper?
>Plenty
>always
>unless [random number you pulled out of your ass]
It's a multipart tolerance stack, the disco has about 30-50thou engagement. Say you take away 20 thou because your positional tolerance is fricked, and then take the tolerance from the edge of the sear surface to the pivot hole on the disco, then take the tolerance from the hammer sear surface's edge to its own pivot hole, run it through CETol or something, or just consider it a purely horizontal problem, and add up the numbers by hand, it can get darn close to slipping. And that's not even considering wear.
>[random number you pulled out of your ass]
Yes, I know. I wasn't making a point about a specific value, I was making the point that it would have to be very excessive for it to significantly impact the engagement of the trigger sear and hammer.
If it's out enough that your disconnector isn't engaging, you're going to fricking notice that.
>disco has about
>darn close
So why don't you run it through CETol or something, and show how far they'd need to be out of spec for the trigger sear not to engage properly?
>So why don't you run it through CETol or something, and show how far they'd need to be out of spec for the trigger sear not to engage properly?
Sorry, but I'm not willing to spend a couple hours modeling and constraining stuff with the proper tolerances just to prove to you that a mechanism with a three part tolerance stack that holds a sear contact of 30-50 thou wouldn't like a hole being 20 thou out of tolerance. Honestly, that should be fairly obvious. Here's the tolerances of the sear edges to the respective pivot holes on the disco and the hammer, one is +/-.003, the other is +0/-.004 , by this alone you can lose .007" of sear overlap from nominal. I don't recall the diameter tolerances of the holes, but it's probably something like +/-.001, so with both holes at minimum material condition, you lose an additional .002. The "horizontal" hole to hole distance is probably +/-.002, or a positional dia tolerance of .004 if the newer drawings use GD&T. It can add up pretty quickly, so yeah..20 thou is a lot, but to a human eye, it's hardly perceptible depending on what you're doing. Installing a cassette trigger would make it obvious, but installing a normal 2 part trigger may not.
Black person what are you even talking about, .020 is a fricking mile- if the holes are off that much the part is scrapped and your point is moot. You talk like a homosexual engineer
>.020 is a fricking mile- if the holes are off that much the part is scrapped
Here's the thing though, some Aero lowers came out with holes that far out of tolerance. Hence this entire fricking discussion. Aero QC is trash.
kek thats completely moronic on their part, that cant be blamed on manufacturing variance. Not surprised though-they are barely above PSA in terms of the QC lottery. On my M4E1 upper you have to really push on it to get it to snap shut.
*the dust cover
No they didn't.
I doubt there is any evidence
I don't even see how it could be possible, .020" is a mile. If the part was set up that far off in the machine every single feature would be fricked not just a pin hole.
Machining AR lowers is a fricking trivial task for any competent CNC shop. The notion that Aero would be incapable of doing it to a decent standard despite literally being an aerospace shop originally is hard to believe.
>.020" is a mile
Thats what I said- even running with a broken spot drill it would walk maybe .005 off center, and considering the diameter tolerance is +.0015/-0 I'd doubt they use normal HSS drills anyway, probably Carbide drills. If the whole part was .020 off even the most moronic operator would be able to see it by eye. I could only see it happening with a really bad misload, but I have seen their fixturing and that doesnt seem likely to happen. Aero QC is certainly shit but this claim is dubious at best
is wobbling that bad? I have a cmmg AR that wobbles a little it's like 1.5 moa with m193. I had to build the upper since my state requires a heavy barrel but all parts are cmmg.
no. Wobbling doesn't matter at all and he is completely full of shit.
What barrel did you use fellow crabgay
cmmg bull barrel .937gas block. it weighs a tonne.
I just built an AR for a buddy using a ballistic advantage barrel. it's pretty good about 1 moa maby 1.5. I'm thinking of holding off for a nice crime lined chf when I nice States but it's super tempting to buy a ba barrel.
>I had to build the upper since my state requires a heavy barrel
lolwut
Most companies don't make a heavy barrel upper. if I wanted to use specific parts I need to build from a stripped upper.
What state do you live in?
MD looking to move to WV or VA
Lower has no bearing on accuracy.
there's "noguns" and then there's you. lowers if out of spec enough that there's slop between the upper and lower will effect accuracy.. the same way that slop in a buttstock effects accuracy.
Nope.
Black person
>wobble between the upper and lower absolutely contribute to accuracy issues
moron
Receiver wobble does not affect the mechanical accuracy of the rifle, but does affect the shooter. Wobble hinders precision some cases. Where scopes are used, consistent head position within the eye box is key to landing the shot exactly where it is aimed. For iron sights, the front/rear post alignment is critical. Wobble requires two objects to be stabilized, instead of just one. It is doable, but more difficult.
You just tighten the internal tension screw until the wobble is gone. If it's so out-of-spec that that doesn't fix it then return the lower to the manufacturer.
How do i tighten this on my m4e1 lower and upper. I dont do precision shooting but have a bit of wobble i want to reduce
Stuff a cheap foam ear plug just under the upper receiver rear takedown pin ear. If it is especially bad, you may need to buy an accuwedge.
For the m4E1, take the grip off and adjust the tension screw from the underside of the receiver.
>out of spec lowers that create wobble between the upper and lower absolutely contribute to accuracy issues
No they don't. Also that's not an "out of spec" thing, that's any AR. They all wobble. It's a consequence of the gun being held together by two fricking pins you moron.
The lower on my C7A1 in BMQ slopped all over the place and I still qualified as a marksman
Aero lowers literally have a screw that prevents wobble between the upper and lower
my Aero build has slop but still shoots minute of angle groups. You have no Idea what you're talking about.
Black person
I can’t stand the big ass “A” on the side of their lowers. just make a lower with the most minimal branding necessary. it just screams gigahomosexual when I see them
The scarlet letter's much smaller on the non E1 lower, still don't like it, but not worse than all the laser engravement everywhere else
>muh wobble
There's a set screw in the lower to address any slack, but I doubt you're shooting beyond 100 yards
I wonder if you could just fill it in with something, sand it down, then respray it.
I bought ballistic.advantage lowers for that reason. Minimal branding and same company...ish. I stick with solgw or centurion lowers nowadays because I'm a massive homosexual who thinks one day I'll convert them to FA.
ah yeah the blacked logo is much better
Yeah everything is better blacked
They’re inspec
Standard tolerance for cnc machining is +/- 0.005 aka 5 thou
Let’s say your lower is 5 thou under from brand A but still in tolerance
And let’s say brand b makes the upper 5 thou under
How there is 10 thou gap which looks big and where that wobble comes from both are in tolerance
Plus type 3 anodizing adds some thickness that’s unpredictable in places non-repeatable
Mil spec tolerance of the top deck is +/-.003
Type 3 ano thickness is typically one thou per MIL-A-8625, half in, half out because ano creates pores by digging pores and elevating ridges, so you're really only adding 5 tenths to a dimension.
Besides that, I'm with you, wobble between the receivers doesn't affect accuracy.
Spec for Upper lugs is .496 +0/-.003, Rear lower pocket is .500 +.005/-0 Front lower pocket is .500 +.004-0. Dimensions are before plating for some off reason. I don't care to find the mil spec for the anodize but Hard anodize is usually 5 tenths per surface build up so that means the lugs would be .494 at the thinnest, and the pocket would be .~503. That's 9 thousandths clearance -a piece of printer paper on each side of the lug. many people feel any sort of wobble in their poverty lower and start screeching "out of spec when" they don't own any joe blocks/mics to verify what they think. I have an anderson lower thats .504 in the front and any upper I put on it wobbles like hell, both my LMT lowers are right at .500 and are super tight. I obviously prefer the fit of the LMT but both lowers are "in spec".
I hope you are trolling
who else is just shitting out lowers? the spikes dick lower was hot 10 years ago. poverty pony is hit or miss if everything is square and in spec. never seen a psa. colt's are just collector shit at this point.
>better challenge: name a lower you had/have that noone else does
> better challenge: name a lower you had/have that noone else does
Unfortunately many of those no name lowers, and of course uppers, are simply rebranded receivers from the same group of manufacturers like Aero, Windham, Bushmaster, PSA, Anderson, Spike, etc.
I wish daniel defense would sell just their lowers stand-alone like they do with their uppers
>slap Bear Creek Arsenal upper on DD lower
>It's a Daniel Defense.
>Sell it.
>"DD looks like a bunch of illegal mexicans milled this shit freehand with a wood bit and jams like crazy!"
>Occasional "Send it back to DD."
I can see potentially why they don't.
Triton mfg out of virginia beach. It's shit. Thought I was doing good by buying local but I ended up buying garbage instead.
JD Machine , out of San Diego
The owner went to prison awhile back for bribing naval officers for contracts.
Problem is mine is registered as an assault weapon in the state of California because I stupidly registered it in 2016. So it’s completely worthless to anyone except me.
Interesting story about JD, I also remember there was an 80% guy in Union City (near the Mex border) I forgot his name…
Before the bullet button registration went into effect I got some Spikes Punisher lowers because only a $100 a piece.
If I were buy today I’d get a Sons of Liberty though.
ruger lower. Not sure why I never see anyone with them considering the 556 is a great starting point and you can just upgrade your upper instead of buying a new rifle.
Olympic Arms Billet
>Frankford Arsenal (Olympic Arms) A1 Preban
their uppers are also good. Ballistic advantage is just as good as BCM. If not better. And aero is literally half the price
Sharps Bros make damn good products but their lowers are so fricking lame looking. The livewire I got from them holds up on everything. What a shame they don't make more standard looking ones
They make a forged lower with the look of a billet lower. Same thing with their upper receivers.
This and a flared magwell. Aero m4e1 lowers are good value for the money if you don't need ambi.
What are /k/'s favored milspec forged lowers?
h&r commando with the aluminum stock
I hear Sneed Tactical makes good lowers. they feed pretty well.
I'm thinking of getting one for a 6.5 rifle.
Colt
yeah....
holy shit
up to .030" Flash from forging after machining is permitted- shit bead blast job though, is that nucolt or OG colt?
fellow colt chad detected
I do have a Colt (my only AR is one of their A4s, few thousand rounds in so far without a problem), but do they sell lowers separately? I'm looking to build an AR is why I ask.
80% I mill myself.
anderson stripped lowers. they're cheap and they even offer m16 cut lowers.
Neat pictograms, optional short throw selector design, better QC and resale value than Palshartto.
They aren't the cheapest one you can buy
>rear takedown using a retaining screw
>built in trigger guard saves a step
>bolt catch doesn’t require a punch
And some other shit that helps assembly. If you aren’t buying it stripped you probably don’t care.
>bolt catch doesn't require a punch
If you seriously b***h about this turn in every gun you own now.
Specifically the M4E1, it is not a mil-spec lower. This is what they did right:
> Fixed trigger guard
> set screw keeps rear takedown pin spring with receiver- easier to change grip
> internal tensioning screw keeps upper and lower from wobbling - this has no bearing on mechanical accuracy it is important for consistent sight alignment
> Best feature: Bolt catch pin is a threaded pin.
No roll pins. None at all.
Yes, this is good feature Aero included- an internal tensioner. The 'mil-spec' colt I handled wobbled a lot. An ear plug stuffed under the rear takedown pin fixes the problem, but an internal one just works better.
I have their AR-10 , $1000 ar10 is a good deal
Because the lower doesn't impact performance at all so spending +$300 on the LaRue one is as cringe as having a punisher skull magwell. You're just paying for a logo.
Bearcreek arsenal is better than Aero and PSA combined.
can't be the only one who see's a spurdo in the op image
Good quality at a good price point.
Because quality of lowers(outside the trigger) don't impact the performance of ARs as much as the uppers do.
Its funny seeing morons think Aero isn't a good machining facility.
They literally built airplanes out the ass for Boeing BEFORE switching to gun shit. Only thing wrong about Aero is minmax homosexuals opening their slackjawed mouth crying about shit they don't know about.
I trust their uppers
>They literally built airplanes out the ass for Boeing BEFORE switching to gun shit
Yes, and?
You think they hold themselves to AS9100 and six sigma when making gun shit? Please..
I take special precautions not to fly Boeing ever.
Why?
>force their employees to get vaxxed
>didnt fight against the awb
Did they? Sauce plz.
>didnt fight against the awb
Yes they did you bitter gay
>owning a lower with Tacoma, WA stamped on the side
of all the shitholes in the liberal hellscape that is Washington, Tacoma is by far the most Black person-infested and crime ridden, why would you want a constant reminder of it's existence when you look at your gun?
cry more and go frick your sister cleetus. Go to based and redpilled Louisiana and Mississippi. Why not st. louis
>frick your sister
God I wish.
Post sister
I don't have one; that's the appeal of the fetish.
>don't have a sister
Good, they're WAYYY more trouble than it's worth, even reward sex doesn't make up for it.
>even reward sex doesn't make up for it.
I take it you have first-hand experience?
>Tacoma is by far the most Black person-infested and crime ridden
Nah, that's nowhere near true. It is a Black person and homeless infested shithole, but it is far from the worst that hellscape has to offer.
Tacoma is nice. Any place on earth has certain chaotic areas where the poors live
>the port city that vietnamese triads and ms13 operate out of is "nice"
sorry but no. tacoma has always had a bad reputation you must be a transplant.
>vietnamese triads
and I thought viets couldnt possibly get any worse
t. hilltop poors. I am not a fan of Tacoma anymore due to the homeless surge but It really isn't as bad as you make it seem.
Every city on the entire west coast has mafia elements from mexico, asia, or central america so that is pretty meaningless
>t. hilltop poors
I live in Gig Harbor. You are the poor.
>homeless tents set up on the sidewalks and in any open space
>iTs NoT THaT bAD
go frick yourself
well I never actually go to tacoma proper. I find it gross too. I mean outside that specific bubble of tacoma + south tacoma + lakewood, fircrest, UP, gig harbor, steilacoom, proctor is nice.
>ok so tacoma isn't that bad if you're not in tacoma at all
when people say tacoma it refers to a lot bigger area than just downtown, hilltop, and south tacoma.
>t-tacoma isn't completely a shithole, U-UP is still kinda ok and Ruston is nice
>let me lump in Gig Harbor too even though it's straight up across the whole ass Puget Sound from Tacoma
>basically all of Pierce County is actually just Tacoma
no
no need to be hostile gentlemen. Gig Harbor is across the water but is University Place and Steilacomb aligned far more than the rest of the peninsula
>homeless surge
>isn't as bad as you make it seem
double think
no homeless really outside of the shit zones of tacoma proper. Where no self respecting person lives
>Tacoma is nice
I grew up there and recently went back for a bit. What I saw shocked and disgusted me. The fact you think it's "nice" tells me you're the same sort of human shit that ruined the whole state.
Does anyone sell a lower with the a5 buffer already on it?
VLTOR, I would assume
is there any actual evidence of Aero drilling a pin hole .020 off the mark? Even better is there any evidence that it happened more than once?
Unironically a good deal.
I recall aero makes a large % of lowers on the market. They just forge them and sell them to others to finish engraving their logos and serials.
PSA should be the base build for AR lowers, I've had too many returns with Aero.
PSA makes a decent lower and the money is going to a based company